Fixed spelling error

docs/docs/howto_contribute.xml

@@ -34,7 +34,7 @@
          <p> If you want to make a big change or feature addition, it's probably a good idea to talk to me about it first.  
             Additionally, you should read over the coding guidelines below
             and try to follow them.  It is also probably a good idea to read the books Effective C++ and 
-            More Effective C++ by Scott Myers.    
+            More Effective C++ by Scott Meyers.    
          </p>